基于氧化铝、氧化钛纳米有序微孔阵列研究结构诱导表面润湿转变的物理机制

项目名称： 基于氧化铝、氧化钛纳米有序微孔阵列研究结构诱导表面润湿转变的物理机制

项目编号： No.11464041

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 王建

作者单位： 西北师范大学

项目金额： 62万元

中文摘要： 该项目的总体思路是，实验上探索制备大面积三角、四方、六方排列的AAO(或TiO2)有序多孔（管）阵列结构及其金属、半导体、碳-AAO(或TiO2) 纳米有序复合阵列结构的新工艺，研究结构参数、表面自由能以及表面润湿特性三者之间的定量关系，探究结构诱导表面润湿转变的物理本质。理论上建立更接近于实际的结构模型和界面能量体系，深入探讨结构诱导表面润湿转变的物理机制，建立定量描述结构化表面润湿特性的物理模型。显然，该项目有如下优点：1）通过控制阵列结构自身孔（管）道的几何尺寸，可精确调制其比表面积，这为表面能的精确计算提供了条件；2）微孔阵列排列高度有序，排列方式易于调控，且微孔内易于囚禁空气，为结构化表面润湿特性研究提供了理想的结构模型；3）在孔道内植入不同材料(金属、半导体、碳等)以调控表面自由能，有助于研究表面能与表面润湿性的关系，探究结构诱导表面润湿转变的物理本质。

中文关键词： 低维纳米结构；润湿转变；物理机制

英文摘要： In the project, experimentally, the new technologies will be developed to prepare a large area of porous AAO(or TiO2) ordered nanoarrays with triangle, square, hexagon and the correponding metal, semiconducter, carbon-AAO (or -TiO2) ordered composite nanoarrays. Then their surface wetting properties will be investigated and obtain the quantitative relationship of the nanostructure parameteres, surface free energy with the wetting properties, make clear the physical nature of wetting transition induced by the surface structure. Theoretically, the physical mechanism of wetting transition induced structure will be deeply discussed, and a resonable wetting model will be established to describe quantificationally the wetting properties of structured surface. The research project would have some advantages as followings: 1) The material nanostructure is easily controlled precisely, this is benificial to modulate specific surface area, and supply a convinience for the calculation of the surface free energy. 2) The nanoarray is highly ordered, the arranging formation of nanopores is easily adjusted and the air would be easily trapped. Of course, the nanoarray is an ideal structure model for the study of wetting transition induced by surface structure. 3) The different materials, such as metal, semiconductor, carbon are deposited into nanopores to adjust surface free energies, this would be benificial to discuss the relationship of wetting properties with the surface free energy and to make clear the physical nature of wetting transition induced by the surface structure.

英文关键词： Low Dimensional nanostructure;Wetting Transition;Physical Mechanism